Fluid-pressure valve



- R. J. BOGUE FLUID PRESSURE VALVE Filed June 5. 1926 Nov. l, 1927.

I L u.

Patented Nov. 1, 1927.

1,647,429 PATENT OFFICE.

ROBERT J'. BOGUE, 0F GOODNIGHT, TEXAS.y

FLUID-PRESSURE VALVE.

Application led .Tune 3,

The invention provides a valve mechanism which, in connection with a governor, controls the supply of a motive-agent to an engine, whereby its speed may be regulated to the load after the parts have been set to a determinate adjustment. l

The invention contemplates a valve including a casing and a Huid pressure controlling element mounted in the casing and adapted to receive a two-fold movement, the one rotary and other axial. lThe rotary I movement of the valve is regular and determines the periods of cutting oif the Huid pressure., Ihe longitudinal movement of thevalve is variable and determines the duration of the cut off of the iuid pressure.

While the drawings illustrate a preferred embodiment of the invention, it is to be understood that in adapting the means to meet specific needs and requirements the design may be varied and such other changes in the minor details of construction may be l r resorted to within the scope of the invention as claimed, without departing from thf.l spirit thereof.

For a. full understanding of the invention and the merits thereof, reference is to be had to the following description and the drawings hereto attached in which,-

Figure l is a diagrammatic view illustrative of the invention, as applied to a rotary engine,

Figure 2 is an enlarged sectional view of the valve and governor,

Figure 3 is a horizontal sectional view on the line 3-3 of Figure 2, and

Figure. 4 is a vdetail perspective view of the fluid pressure controlling element.

Corresponding and like parts are referred to in the following description and vdesignated in the several views of thedrawings by like reference characters.

The numeral 1 designates a rotary engine which may be of-any make or type and 2 represents apipe for supplying liuid pres sure thereto. The pressure controlling valve is located' in the length of thel pipe 2 and comprises a casing 3 and an element4. The casing 3'is of cylindrical form and the Huid pressure controlling element 4 has a snug iit therein and is adapted to receive a rotary movement and an independent longitudinal or axial movement. A'tubular shaft 5 exf tends into the easing 3 andfis journaled in the head thereof and has the element 4 ad- ]ustably connected thereto, whereby provi- 1926. Serial No. 113,577.

sion is had for setting the same to a predetermined load and speed. The tubular shaft 5 is adapted to receive a rotary movement and an independent longitudinal movement.

For convenience of illustration a bracket 6 1s shown attached to the casing of the engine l and receives a horizontal shaftv 7 which is connected to the shaft of the engme bv suitable gearing, such as a.. sprocket cham 8 and sprocket wheels fast to the shaft 7 and the shaftv of the engine. A vertical shaft 9 is geared to the horizontal shaft 7 and passes through the tubular shaft 5 and is stepped in the bottom of the casing 3. The shaft 9 is splined or otherwise connect! ed to the tubular shaft 5 to impart rotary movement thereto and at the same time admit of the shaft 5 movinglongitudinally on the shaft 9. y v vWeighted governor arms 10 form connectlng means between the two shafts 5 and 9 and are pivoted to a cross head 11 fixed to 'the shaft 9 and are pivoted to a sleeve 12 adjustably connected to the shaft 5 by means of a set screw 13. v

The fluid pressure controlling element 4 partakes ofthe nature of a plug valvein which is formed a longitudinally disposed tapering lopening14 and oppositely disposed lateral ports 15 in communication with the large end /ofthe opening 14 and which are disposed about in line with the fluid pressure supply pipe 2. The ports 15 in con]unction with the opening 14 insurea supply of fluid i pressure to the engine when the same iSj turned on. The taperin opening 14 is centrally disposed so that t e outer surfaces 16 of the plugv valve are alike and taper inversely to the opening 14, hence the distance from one sidenof the surfacel to 'nsI the opposite side varies at each point in the length of the valve. When the valve 4 is positioned so that the ports 15 just clear the point of communication of the pipe 2 with the casin 3 the iiuidA pressure is adapted tof be cut o for a minimum period and as that` valve 4 moves upwardly in the casing 3, un-

der the influence of the governor, as the speed of the engine increases the period ofl durationof cut-.off of the fluid pressure pro- 17inV ends of the pipe 2 connect. As the valve Y4 is drawn upwardl in the casing 3 the length of the cut o surfaces 16 in line with the openings 17 increases, thereby increasing the duration of the cut off and inconsevalve element 4 is at the limit of its downward movement in the casing 3 and the ports 15 are about in line with the openings 17 to insure a assage of the motive agent through the va ve casing when the. same is turned on to the pipe 2 by means of a valve, not shown. As the engine attains the predetermined speed the governor mechanism operates to draw the valve 4 upwardly in the casing 3 and should the speed of the engine increase from any cause the valv'e 4'will operate to automatically throttle the engine by cutting olf the supply of pressure for. periods of greater duration-by increasing the length ofthe cut oif surface closing the openings 17. Should the speed of the engine fall below the predetermined number of revolutions per minute the governor mechanism will effectia lowering of the valve 4 in the casing 3, thereby decreasing the period of duration of the cut 0E, thereby resulting inv 1 an increased supply of engine, whereby to increasev the speed thereof. The valve 4 is adjustable on the shaft 5 and is secured in the adjusted position by means of a set screw 4a threaded into an-opening formed in a collar at the upper end thereof.

Having thus described the invention, I claim:

1. A fluid pressure controlling valve comprising a casing having opposed lateral fluidA pressure to lthe both longitudinally and transversely and tapci-ing throughout its length and -forming corresponding tapered cut off surfaces, and

having lateral ports in the smaller ends of the cut of surfaces leading into the large end of the longitudinally disposed tapered opening, and a governor mechanism for imparting a rotary and a longitudinal. movement to the valve..

2. A fluid pressure controlling valve comprising a casing having opposed openings in its sides, a valve snugl fitted Within the casing and having a-medsial opening extending both longitudinally and transversely and taparing throughout its length and forming opposite corresponding tapered cut off surfaces and having opposed lateral ports in the smaller ends of the cut oif surfaces, concentric shafts extending into the casing and valve and a governor mechanism adjustably .connecting the concentric shafts and adapted to impart a rotary and a longitudinal movement to the valve. l

3. A fluid pressure controlling valve coinprising a casing having opposed ports in its sides, concentric shafts within the casing and connected to rotate in unison, the outer shaft being freely slidable on the inner shaft, a plu@ valve snugly fitting within the casing andfbrmed with a medial opening extending both longitudinally and transversely and able on the outer shaft, and having opposed ports in opposite sidesI leading into the larger end of the tapered opening, means for securing the valveto the shaft in the detapering throughout its length and adjustsired adjusted position, and a governormechanism mounted upon the inner shaft and having its weighted arms adjustably connected to the outer valve carrying shaft. In testimony whereof I aix my signature.

` ROBERT J. BOGUE. [n s] 

